Abstract

This work presents a system for strengthening upper limbs in children through an interactive videogame system and the use of myoelectric muscle sensors. The system allows the acquisition of myoelectric signals taken by electrodes placed in the muscles of interest so they are sent to the computer to be visualized in the virtual interface. Several virtual interfaces were developed in the Unity 3D graphical engine in which the degree of difficulty of the videogame can be selected as well as the muscle affectation and the duration of the repetitions of each exercise. User personal data is stored in a data sheet. The data transmission is carried out using Bluetooth wireless technology in charge of establishing a reliable and real-time communication. Tests were performed on 5 users (3 boys and 2 girls) with ages between 6 to 12 years, and the SUS usability test was applied with results (84.5 ± 0.62), which allows to determine that the system has a good acceptance to be used in muscle strengthening.

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